The smallest is the two-inch-long bee hummingbird. Everything about the anatomy of a bird reflects its ability to fly. The wings, for example, are shaped to create lift. The leading edge is ...

This one of our egg facts might be the most amazing! Wisdom, a 70-year-old Laysan albatross and the oldest banded wild bird on Earth, hatched an egg in 2021 with the help of her mate, Akeakamai.

Past societies developed a range of weird and wonderful explanations for birds’ annual disappearance. Some thought they became barnacles, others that they hibernated in cliffs. As recently as ...